makita charger question [RE-wrenches]

[Darryl Thayer]

The Modsine (ModS  Square)inverters typically have a
very fast transition from 0 to 150 volts.  The charger
gives the battery pulses, if the pulses transition
happens at the same time as the source pulse there is
extra heating and frequently the charger is lost. 
After losing some changers, I installed a Morningstar
300 watt inverter in my van for such purposes, I now
run all my electronics on the Morningstar, and only
use the Mod sine for power tools.  

Darryl




--- Bob Ellison <reellison at gmail.com> wrote:

> Jay,
> I have no experience with the Makita chargers but in
> the past I have
> had to cut ventilation holes into a Snap On charger
> to use it on a mod
> sine so it wouldn't melt down from the excess heat
> generated. Made a
> cult little black lump when it got done cooking
> down. Snap on replaced
> it under warranty.
> On a Craftsman charger it would blow the fuse and it
> ended up I had to
> up the fuse from a 5 amp to 5.5 amp if I remember
> correctly. No
> problems after that with either charger.
> A hint that has helped me with battery life it to
> run it down all the
> way to flat before you charge it. If you have a
> flash light use that
> to discharge it fully before you recharge it.
> 
> Best of luck,
> Bob
> 
> On Dec 4, 2007 9:41 PM, Jay Peltz, Peltz Power
> <jay at asis.com> wrote:
> >
> > Hi All,
> >
> > just bought a new makita Li-Ion 18v unit.
> >
> > They don't have a 12v car charger for this yet.
> >
> > has anyone tried using a mod sine inverter to
> power the standard 120v
> > charger?
> >
> > thanks
> >
> > jay
> >
> > peltz power
> >
> >
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